Cobalt-Catalyzed Vinylation of Organozinc Reagents with Aldehydes  

作　　者：WANG JinXian 

出　　处：《Chemical Research in Chinese Universities》2001年第z1期184-185,共2页高等学校化学研究（英文版）

基　　金：We thank the National Natural Science Foundation of China and the Northwest Normal University Science and Technology Development Foundation of China for financial support.参考文献：

摘　　要：Transtion metal catalyzed vinylation of organic halides are known to be a very convenient method for forming carbon-carbon bonds at unsubstituted vinylic position. The versatility of stilbenes is well known because of its various biological active components, the variety of its reactions in organic syntheses, and its ability to function as a bonding partner for metals in complexes. Many methods have been described for the synthesis of stilbenes. The reduction, dehydrogenation, and elimination reactions leading to stilbenes without formation of new carbon-carbon bonds are known to be a very convenient methods. Synthetically more important are the dimerization reactions: oxidative or eleminative dimerization of a suitable methylarene often constitutes the method of choice for the preparation of a symmetric stilbene. Meerwein arylation and Heck reaction are prominent examples for the synthesis of stilbenes from arenes and styrenes. Moreover, condensation reactions of a nucleophilic with an electrophilic arylmethyl compound include Knoevenagel type reactions and the very general Wittig and Wittig-Horner reactions are also known methods.

分 类 号：O6[理学—化学]